Electric air heater



Sept. 13, 1949. L. YEJEsKl ELECTRIC AIR-HEATER `Filed Nov. 15, 194e the rigidity of the woven element. The heating heating unit II is positioned to the sides of the center core of transite I2 and Figure 3 illustrates the method of passing the element II through the slot 23 in the transite I2.

The heating element II with the transite core I2 is then mounted in the perforated tubular shield I3. This shield I3 in its-preferred form is made of metal. However, plastic or other similar material that will perform satisfactorily may be utilized. The shield I3 is equipped with a handle I8 which will facilitate handling of the device when the unit is hot and also serve as a means for hanging the unit where desired.

The shield I3 may be coated inside and out with a layer of silicon paint or plated with a rust resistant material which will resist any form of dampness and prevent the unit from rusting due to excessive moisture.

Mounted at the lower end of the transite core I2 are the electrical connectors I6 and I'I which are adapted to fit the conventional household outlet plug, the connectors I6 and I1 are secured to the core I2 through rivets 24. The electrical circuit can be traced from connector I'I through lead I5 to the heating element, through the heating element and lead I4 back to connector IB. The device is designed to operate on a normal house circuit of 110 to 120 volts and draws approximately the same Wattage as a fifty Watt bulb.

Figures 6 and 7 show another form of the device where it is used in conjunction with a desiccant such as calcium chloride, activated charcoal, etc. It is contemplated to pack the desiccant I9 either around the heating element I I as shown in Figure 6, or between the shield I3 and an additional outside shield 2U as shown in Figure '7. When used in this form, it is contemplated to hang the device in a moist atmosphere where the desiccant can absorb the moisture from the air. By adding a chemical to the desiccant, it is planned to control the color of the desiccant so that it will change from its original color when completely saturated with moisture. This color change would indicate that the desiccant is no longer operating and, at this point, the device could be removed and plugged into the conventional house electrical circuit. Through the heating action of the woven element, the moisture Would be forced from the desiccant and when this has been accomplished, the device would be ready for use once again. The device is so designed that this recharging of the desiccant can be repeated indefinitely. The woven heating element is adequately insulated so that moisture absorbed by the desiccant will not cause a short circuit between the turns of Wire in the heating element.

An example of where this device would be of great use and benefit would be in conjunction with an electric refrigerator. The device could be placed in the freezing compartment where it would absorb the moisture, preventing the freezing element of the refrigerator from frosting and, consequently, eliminating the necessity to periodically defrost the refrigerator.

While the invention has been described in detail with respect to a present preferred form which it may assume, it is not to be limited to such details and forms since many changes and modifications may be made in the invention without departing from the spirit and scope of the invention in its broadest aspects. Hence, it is desired to cover any and all forms and modifications of the invention which may come within the language or scope of any one or more of the appended claims.

I claim:

1. An electrical device comprising a heating element having a core of non-conducting material and a Woven fabric secured to said core, the'woof of said fabric comprised of electrical conductors and the warp composed of threads of non-conducting material, a perforated tubular shield surrounding said element secured to said core through means, said element equipped With electrical terminals attached to the core and electrically connected to the conductors of said fabric.

2. An electrical device comprising a heating element having a core of non-conducting material and a Woven fabric with electrical conductors, said core being slotted adjacent one end, said fabric positioned through said slot having its ends 'extending down and secured to opposite side of said core, a perforated tubular shield surrounding said element secured to said core through means, said element equipped with electrical terminals attached to the core and electrically connected to the conductors of said fabric.

LECH YEJESKI.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Ovrebo June 10, 1947 

